Add Mosquitto or any MQTT/ broker

I trying to install Mosquitto or any mqtt in casaos and have it run with home assistant. I did my research, but not able to get it to work. Is there a way to have this done? I know HAOS has the broker addon but not in the casaos version - what can work as the broker?

Did you get this up and running, I am working towards the same.

I abandoned my Home Assistant on Casa OS and purchased a Home Assistant Yellow (assembly & setup required) with Zigbee and Matter and a 256GB SSD. Since it runs the HAOS I was able to access every option I wanted. It handles everything I wanted and more; everything is supported, including Home Assistant Community Store. To me it was worth supporting HA and it makes everything easier, especially upgrades.

I went with Proxmox then added the HAOS and CasaOS on two separate VMs. Had no issues that way.

I did see that they added Zigbee to MQTT bridge to the Bear app store - I’ll try it out see if it works.